I got the following error in configuring an exim mailqueue checking nrpe command
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/usr/local/nagios/libexec/check_nrpe -H <ip> -c check_eximmailqueue
must have a tty to run sudo
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This is actually not an error.But a setting in sudo configuration that sets a tty requirement for doing a sudo.
And the error condition is caused because the check command is trying to do a sudo but it does not have a valid tty
To get out of this error .You must comment out the following line in /etc/sudoers
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Defaults requiretty
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should be
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#Defaults requiretty
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Use visudo command to edit /etc/sudoers
Tags: nagios